Secondary batteries
The secondary battery design with a unique current collector configuration addresses energy density and reliability issues, enhancing performance for electric vehicle applications.
JP2026113729APending Publication Date: 2026-07-07PRIME PLANET ENERGY & SOLUTIONS INC
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- PRIME PLANET ENERGY & SOLUTIONS INC
- Filing Date
- 2026-04-17
- Publication Date
- 2026-07-07
AI Technical Summary
Technical Problem
Existing secondary batteries have room for improvement in terms of energy density and reliability.
Method used
A secondary battery design featuring a specific configuration of current collector members and electrode tabs, including overlapping regions and bent portions, to enhance energy density and reliability.
Benefits of technology
The design achieves high energy density and reliability, enabling applications in electric vehicles and other uses.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026113729000001_ABST
Abstract
To provide a rechargeable battery with high energy density and high reliability. [Solution] In a secondary battery, the first current collector member has a first region extending along a first wall, a second region extending in a direction intersecting the first wall, and a first bent portion provided between the first region and the second region. The second current collector member has a third region extending along the first wall, a fourth region extending in a direction intersecting the first wall, and a second bent portion provided between the third region and the fourth region. The first region and the third region are arranged on top of each other, the first region is located closer to the electrode body than the third region, a first electrode tab is connected to the first region, and the second region and the fourth region are joined together.
Need to check novelty before this filing date? Find Prior Art